After installing Acronis True Image 8.0 (trial version, build 826) on laptops running Windows XP SP2 and Windows 2000 SP4, I found that it stopped the host computer from being able to share folders over a WiFi LAN. Attempts to access the folders produced Error Event 2011 (‘not enough server storage’) on the remote computer. To make sharing work again I had to increase IRPStackSize from the original setting of 11 (decimal) to 15. Using Regedit you can access IRPStackSize at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters. You have to reboot before the change takes effect. Useful links: http://support.microsoft.com/?scid=kb;en-us;177078, http://groups.google.co.uk/group/mi...e image event id 2011&rnum=2#6d776ed8b028eaec. Hoping this saves others from wasting a day like I did… David Tong.