LUCKNOW: It is not so easy to change the wallpaper of the laptops UP chief minister Akhilesh Yadav distributed. The wallpaper depicting Akhilesh and his father Mulayam Singh Yadav , if changed, may lead to crashing of the entire system.

That's what most of the students found when they tried to do so. In fact, that was the first thing some of the students tried after getting the lap tops. The wallpaper happened to be in-built and tamper-proof. Hence it can't be changed, report said.

According to reports when some local HP vendors tried to change the wall paper, the the operating system, Linux , got wiped out and the system crashed.

Officials in the UP Electronic Corporation Limited , the agency that distributed the laptops, advised users not to tamper with the wallpaper. ``It can lead to crashes,'' an official said. The UPECL official, however, said that the machine comes with a year warranty and in case of any snags beneficiaries may contact the office of MD UPECL.

Students also tried to make quick bucks by selling off the lap tops to the local vendors. However, most of them turned down the offer.

District administration officials said that they were monitoring the lap top. They warned the those caught selling or buying the machines would be prosecuted as per the agreement signed in the registration forms.