Slitherine

Hello i just want to bring to your notice as im worried about being accused of cheating again. That twice in three days my computer has crashed while playing against two different opponents. The first time it happened i had a blue screen error warning come up on my screen, so i had to close down and restart my computer. About two hours ago while doing my online turn the screen just blacked out my computer was still running. So i had to restart my computer again. I have warned my opponent in the recent incident to be honest about what happened. So far this sort of thing hasnt happened with anything else im on or running so i cant make up my mind if its my computer and something ive downloaded has upset it or there is some sort of connection problem with this server. I notice recently that its taking a long time to connect up online with this server over the last week. So has anyone else had these problems recently? If it is my computer how can i tell or look into it? Thanks for any help.