alt click problem with photoshop

[neophus]

Hello

I have virtual box 4.2 (64 bits) with photoshop cs5 It's works but I have a little problem with buffer, I can't use this (alt+clic) I have message "impossible to use buffer" etc...
I've already search on web to find the problem, perhaps it's a command on virtualbox or over witch use alt and apparently it do conflict with photoshop, I've test a lot of things but I don't found

someone have an idea?

thanks you

[neophus]

I've found the problem ! I must to disable mouse integration and it works, but I must to do that each time when I restart my VM but it's better than nothing...