My ds is 4 and is on the computer about 2 hours every other day. He only plays learning games, ABC and 123, winnie the pooh. Even though the PC is on for two hours he gets off every half an hour to play with something else then he'll get back on. He is never on there after 4.00p.m (we tend to put on CITV or CBeebies) as I feel it can stimulate his brain particulary before bedtime. Just wondered how long other mumsnetters children are on the computers for. His pre-school teacher said that they should only be on there for 15minutes, but by the time he's got on there for 15 minutes, he'll have to come off. What do you all think? Thanks