AJAX problems

[Removed-836727]

Am i the only one, who can't use the ajax features here? (quick reply, quick qoute, mark forum read, etc...)
Also i can't use the asset/attachment manager

[Destron]

I can use quick reply.

[Colin F]

Try using a different browser or hard-reloading the page with Ctrl + F5

[Removed-836727]

I have no other Browsers.

With K-Meleon the whole forum is not working because of the design and with firefox i have this problems.
I tried also hard-reloading, but the problem still exists...
On vbulletin-germany.com and other vB4 forums i don't have this problem, only here.
The strang thing is, that it's sometimes working and sometimes not (for example now it worked, also the quick edit)

[feldon23]

I have no other Browsers.

with firefox i have this problems

???

I had to Google K-Meleon just to figure out what it was.

If this problem is happening on the top browsers (Firefox, IE8, Safari, Opera), then I'm sure it will be addressed.