Seamless mode doesn't repaint background in 3.0.2

[M.]

I run an XP-guest in seamless mode. In VB 3.0.0 whenever a window disappeared (due to being closed), my Linux background was always repainted correctly. After upgrading to 3.0.2 this no longer happens -- the closed window remains on the screen.

For example, in seamless mode,

• I press the Start button -> the Start Menu appears
• I press the Start button again -> the Start button pops back up, but the menu remains on the screen (although no longer active, of course).

In 3.0.0 the second action caused the menu to disappear and the background restored.

Downgrading from 3.0.2 to 3.0.0 does NOT correct this problem (I did reapply the 3.0.0 guest additions to the guest, of course).

Nothing was changed in the X-configuration in the Linux-host, nor did I make any changes to any video setting in the XP-guest.

Host OS: Pardus 2008.2 Guest OS: Windows XP, SP3

[M.]

The log file for the XP-guest