[OK] Dragging component on Form is very slow on LinuxMint

[Bearimprint]

Hi,
I have  the last stable Lazarus  release (0.9.2.6) on Windows XP (SP2) and on LinuxMint (a Distro based on Ubuntu 8.04)
With the XP version:
 - When i put a component in a form and drag it, it's very smooth and without blinking or "Freeze & Jump ".
With the LinuxMint Distro:
 - When i drag a component on a form in the linux version, is like having a very slow machine and component don't move smootly but they "jump" from place to place, the grid, on the form, disapear and is like a mini-freeze or a blink.

Well, i can use Lazarus. Compil and Run the program. For the moment i have just found this difference between my Window and linux version.
I have Compiz with accelerated graphic and i don't have problem with other things in Linux Mint (All program and graphic react fast. Only this "problem" with the drag of components on a Form).

Any idea about this problem ?

[Bearimprint]

Much better with Lazarus in GTK2