No known fix for me....but I've been bitching about this for two weeks. Hope it comes up. I've got radiant to work pretty well by keeping the enitiies turned off/filtered. Rungsi told me that one thing you can do is:
- click on the entity
- hit 'n' to open the entity screen
- check the 'detail' box.... do not use the 'right-click' option, it won't work.
Try one or both of those ideas. Right now I'm working on two maps... One at home that won't even compile...nor will ANY map that I previously compiled. I always get the 'MAX_SURFACE_INFO' error. I 'think' it has to do with too many shader files...from what I've found on the web. Not sure. The second map I'm working on at 'work'...

It keeps getting the VIS count screwed up jumping by more than 6x now from one compile to the next. Very strange....when it works, the vis size is about 67,000+ but last time I got the size error of 6,500,000+ (over the 2.9 million count). Oh well. IF you hear of some fix, please post it! I've avoided re-installing because I'm trying to do some 'Russian front' maps. Kursk, and the like.