"Why isn't my track pad working correctly?" için yanıtHi @william1213, I totally agree with @dancomptia Based on the observations shared, it is possible that the service center might have not replaced the Track Pad properly or the replaced part is faulty. Take it back ASAP and ask them to examine. Once repaired, test the whole system in front of the technician(s) until you are satisfied. Best wishes…
"How to enter boot menu" için yanıtHi Steph, The following article might help you too (it has options based on the operating system on your computer). How to access the computer BIOS,… (please note this is for model number VPCEG37FM and if your system model number is different, please share and will look up the correct post for you). Any questions please let me know. Thanks
"PC will not boot after attempted RAM upgrade" için yanıtHi David, Further to the above suggestions from @abrsvc, @dancomptia and @jayeff, I had a look up online in relation to System Memory for Intel DP35DP. The article is given below. System Memory for the Intel® Desktop Board DP35DP According to the article, the maximum memory Intel DP35DP Board supports is 8GB (thought this might be helpful with regard to memory upgrade). All the best!