I have an old Acer Aspire Desktop PC based in the kitchen that i mostly just use for emails and printing. Our little Dell laptop does all the heavy internet stuff. This Acer has got to be 8 years old and has served our family very very well over the years. Recently when its been cold overnight i switch it on and on/off button lights up green and then nothing !!!! Dependant on how cold its been it can then suddenly boot up after 30 minutes or sometimes as long as 4-5 hours before it boots. Apart from this it's fine and works brilliantly. Do they have an internal damp/temp sensor somewhere that will stop it booting if faulty. For 7 years its been fine in its location but this last 12 months its gradually got worse so that when cold weather is forcast we leave it on and just switch off the monitor. Obviously at 8 years old i'm not prepared to spend big money on it !! Is it a simple or difficult repair i am looking at ?? Thanks in advance.