>Actually I'm having lots of trouble this site, with both IE and FF on several machines with about no commonality. At two machines it will get back to the homepage after I login (yes I've read to comments on the homepage but none seem to apply to me).

That one is a reject of cookies. A few things to verify can be found here:

https://www.levelextreme.com/ViewPageGenericCookieVerification.aspx

>And at two instances I got the same problem as described above. It logs in, but then nothing, just a blank screen. No messages, no side bar, not toolbar buttons.
>
>I've got no idea what is causing this. Tried to re-initialize them, but to no avail.

If it is not related to problems with corrupted temporary files in the cache of the browser, it could lead to a connection issue.