virtualbox.org

Anyone come across display lag before?

Firstly let me point out, I never used to get it on this hardware (details below). I've ran VB fine in this method for a couple of years now, and upgraded through versions. Then came a memory bug in 4.1.21 and I couldn't run guests with a combined RAM of more than 1536KB. Fixed in .22, however recently I've re,installed both machines (host and guest) and am getting screen lag. Not so noticeable on say youtube on a small size stream, but if I make it full screen it goes laggy. Also on WGT (world golf tour, which I've stopped playing due to this) the Mouse movements appear to be lagged, and slider bar for power/accuracy are impossible to judge as the refresh is so slow.

Ta for any help/suggestions

Hardware
Dell Optiplex 760
6GB RAM
Intel Core2 Quad q9550 @2.83Ghz
Intel Q43/45 express display
Western Digi 7200rpm SATA disks, one for host, one for guest image (on e-sata)

Host
Win7 x64 Pro

Guest
Win7 x86 Pro
1536 RAM
2 CPUs 100% cap
25Mb video RAM (have increased this from base recommended upto 32 and back made no change)
no 2d or 3d accelleration, 2d makes no difference
no remote display.
extended features enabled
IP APIC, no others

A VM will always give lower performance than native - that's the price you pay for using a VM. So yes, lots of us have seen display, mouse and keyboard lags when watching videos or playing games.