No quicksearch drop-down menu

[AciDSAS]

I've upgraded my Roundcube from 0.3.1 to 0.4. There is no drop-down menu for the quicksearch anymore. How do I fix it?

[SKaero]

Are you using the default skin?

[AciDSAS]

Yes, I use the default skin.
Attachment buttons also do not work (no pop-up appears).

[corbosman]

There seems to be a problem with attachments and Internet Explorer in relatively new versions of RC. It looks to be checkin 3756 that causes it.

Dunno about the quicksearch button.