No icons at all. WinXP 32 bit, GeForce 9600GT. What should I do? Is it caused by an old video driver? Houdini ver 11.0.547.
As far as I know, lots of people faced this trouble. Have anybody found an universal solution?

Hello,

it is possible that the icon cache file got corrupted, so Try removing the SVGIcons.cache and SVGIcons.cache.serial files in your houdini11.0/config/Icons directory (located in your home directory). Please see this thread for more details:
http://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=20279 [sidefx.com]

Also, updating the video driver may help.
cheers,
Rafal

P.S.
I tried to reply to the email you sent to support, but there was a mail delivery error for some reason.

This is still an issue under H12 (windows). I was running a clueless virus hunt until I saw this so thx a bunch.