id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
13392,Hang on reboot again,Power10,,"Host - Win7 SP1 x64 Pro
Guest- Server 2003 x32

Get grey bars going on screen when it is just about to finish powering down. This was fixed in 4.1 and now its back again.

Similar to this ticket. 
https://www.virtualbox.org/ticket/11117

My guest is Windows Server 2003 SP2 x32

Had the exact same issue with 4.3.14",defect,closed,other,VirtualBox 4.3.16,fixed,,,other,other