Did you install the last update? Several bugs were fixed.
This is a known issue with CS3 that never got fixed. You'll have to update to CS4 for this to stop.
Thanks for that thought I may have done something wrong. Will have to get CS4 soon it's the last Adobe program I have not yet updated.
Actually somebody presented a "fix" for this.
If I remember right, the "fix" was to put the tools-bin in the bottom of the Title-screen (but it could be somewhere else).
It was a long time ago, but maybe a search will bring up something.