Same Machine G15 1550 and same problem. Rick. UPDATE=RESOLVED- downloaded Support Assist and ran the 9 updates identified. The updates have cleared up the choppy video issues. 
Hello,  I have a G15 5511. I bought it a week ago. Initially, it was having reoccurring flea power issues which eventually got resolved (so far). But now, I am unable to do a factory reset. I have tried: Using any of the options, the OS Recovery tools spit out an error as OS Download is completed at 22%: ( We are missing some of your system details needed to finish the restore.  We are aware and working to fix the issue. You can try again later or please go to [URL] for immediate support) [IMAGE] I guess this is a new bug in their OS tools and there is no viable solution for it, at least for now. Any suggestions or thoughts? Best, Jay
Dell SupportAssist OS Recovery "We are missing some of your system details 
needed to finish the restore..."