IE8 suddenly cannot see some web content?

[djmoore]

For my job (Dell warranty PC repair) I log in to my company's secure portal in the morning to receive my assignments for the day. I pull them in, print them, etc., before leaving to pick up parts and make my service calls.
Starting this Monday, however, I found to my chagrin that I cannot see my new assignments - basically I have a list of calls left to make and if I have new ones to pull in, I get a red button at the top of the screen to click on and review them.
But Monday I did not see the red button, so I assumed I had no new work (it's been very slow lately, so it was no surprise). Later in the morning my boss called to find out why I hadn't pulled in my new work, and that's when I knew I had a problem.

I'm using IE 8 (8.0.6001.18702) - I've done all the available updates for both Windows and IE.

I can see other new content (they post memos on the main page that we have to read and acknowledge before we can get to the screen showing our work - I saw a new memo that was posted on Monday afternoon, but still no work, and I've been sent screenshots showing that the work was indeed there - at least IT can see it, even if I can't.

I had one outstanding call already assigned to me from last week where the customer asked to have the work done this week - I updated the ETA (twice) on Monday and then again today to 5/19, and it still shows the original ETA of 5/17 on my screen. I broke out an old laptop just now to see what I saw with THAT, and it shows me the correct ETA of 5/19 - and presumably would have shown me the new work as well (it was reassigned to someone else until I get this problem figured out).
I don't want to use this laptop, though, because the battery won't charge any more so it isn't portable and is rather quirky. But for now it shows me what I need to see, presumably. And it also proves that it isn't an issue with my internet connection.

But I need to figure out what is going on with my main PC - I ran scan after scan (AdAware, Malwarebytes, Spybot, Avast) and although Spybot and AdAware each found a couple of things - nothing out of the ordinary - nothing has changed.

Was there a recent update to Internet Explorer (8) that I should undo? I don't think that for XP, at least, there was anything last patch Tuesday except for the malware removal tool. A coworker suggested that I look into updating Adobe Flash, since he seemed to recall having a similar problem when Flash was out of date on his PC - I did that (first uninstalling it completely) and then recalled that I did a Flash update within the past few days, which would coincide with when the problem began (sometime between Friday evening 5/13 and Monday morning 5/16. But I don't know where I might be able to get a downgrade of Flash to see if the newest version did the damage or not.

I also recall that this weekend (I think) I finally got around to installing PerfectDisk (it's been used before, but this is a relatively new Windows XP installation) but it is an older version (10) and I don't know if that might have any bearing on the situation - it's never caused me any grief in the past, though. Other than that, I can't think of any changes I made to the PC within the timeframe during which the problem began.

Any ideas as to what I could, or should, look into as the culprit? Many thanks, and as usual my apologies for my wordiness.

[JoeP517]

Have you tried emptying your TIF?

Joe

[djmoore]

Have you tried emptying your TIF?

Joe

Yes - several times. I deleted everything it was safe to delete - cookies, internet files, login information, the link to the webpage - everything I could think of.

[JoeP517]

I guess I'd try the older version of Flash.

Joe

[rictom]

Have you tried opening ie8 in 32bit mode? IE 8 64bit doesn't do everything it should. Click on Start and programs and you'll see two IE's listed. Choose the not 64bit.