Server Error using Internet Explorer

[Pedja]

I have strange problem. When I use RoundCube with Firefox or Chrome it works fine.

But if I use Windows Explorer  (ver , I can login and most of the functions work, but when inbox is loaded, RoundCube just says "Server Error (Not Found).

I tried searching forum and web for some hints about this but with no success.

RoundCube I use is 0.4.2 fresh install.

Tried this on several computers, same thing happens.

[SKaero]

Is there anything in your error log? Are you using any plugins?

[Pedja]

No additional plugins, just plain installation.

There is also nothing in error log.

It seems to me that this is somethin in JavaScript, like it falsely recognizes error. Probably some incopatibility bug, as it does not work in IE, but with other browsers it's fine.