[mythtv-users] X Error: BadShmSeg, How do I fix this?

[Graeme Woollett]

I get the error
"XError: BadShmSeg (invalid shared segment parameter) 157
Major opcode: 142
Minor opcode: 19
Resource id 0x2600021

when I try to watch live TV
grabber is SAA7134
running nvidia module driver
2.4.20-19.23.rh9.at

xawtv works fine

Thanks
Graeme