Three weeks ago my Photoshop CS started popping up each tool's menu EVERY time I clicked them (rather than when I right click or hold the button down for a second).

I cannot stop it and it's so annoying coz I have to click the menu off before I can use the tool.

It started around the time I adjusted the double click speed in my system preferences, though I've since played with and reset them and it's not solved it.

It doesn't occur in Illustrator CS or Image Ready, or in any other environment.

I've tried trashing Photoshop preferences, which didn't solve it.

I'm using a Wacom tablet, but it does it via my mouse too, and even if I unplug the tablet.

Anyone got any ideas??????