Scrollbars relative to screen not coordinates

[Batti]

Hi!
First, I want to thank everyone for spending time reading and perhaps answering this.
I´m having the following problem, which I´m trying to solve for weeks now:
I read-in a 3d file and display it and want to view it from any side, any place at any scale. glRotate and glScale are working fine, yet I have two scrollbars, which are supposed to move the object to the left/right/up/down. But not in absolute coordinates (e.g. like always adding 1 to the x value) but relative to its current position on the screen.
Example: I watch a building and click on "right" and the building moves to the right. Now I use glRotate and watch it from the other side, click on "right" and unluckily it moves to the left.
Please help!

[DFrey]

When you rotate the building, you need to also rotate the right vector. The best way of doing this will depend upon the particular degrees of freedom you are using.

[Jambolo]

Perhaps you are calling glTranslate after glRotate? Try reversing them. Then the translate will be in the un-rotated coordinate system.