Thanks for the info and link to the softstart thread. It never occured to me that that could be an issue. I tried all the sugestions in it and unfortunatly they don't work for me but I think it is part of the problem. I may have more issues due to very old wiring, 100amp service with fuses... I've had to move assorted x10 products to different plugs to get everything working properly already.
It could be a phase thing but in this case there is no option to move to different plug since it's a light. I tried every lamp and appliance module in AHP and the only one that will control the light is the TM751. I have another WS467 in my setup and it works fine, go figure.
Anyhow I really don't need the dim function as simple on off to provide light for security cam is fine.
Again thanks for your help, and maybe someone could add the TM751 option to the sticky incase I'm not the only one who runs into this. Of coarse x10 could fix the software which would be the best. ;-)