Pam asks Jim why his avatar has a guitar slung over his shoulder, questioning if he even knows how to play guitar. Jim is clearly caught off guard and the implication seems to be that he does not, but has only chosen to have a guitar in a fantasy context. However, in E-Mail Surveillance (2005), Pam herself excitedly points out his guitar set up ready to use on a stand in his room. While neither scene conclusively proves he can or cannot play guitar, they seem contradictory.
The entire office is in the conference room when the ad guys walk into the office, but in the next scene everyone is out of the office and the ad guys are just walking in.
When Jim and Pam are looking at Jim's character in Second Life, the camera crew quickly pans to the top of Pam's computer screen. On Pam's computer screen it is shown that the time is 2:15 PM PDT, which is an error as Pennsylvania's time zone is Eastern Standard.