I am looking for a reasonably priced tensioned electric screen (under £1,000 for about 100" diagonal) or a non-tensioned electric that does not wrinkle. I read on the AVS Forum that the Beamax M-Series is indeed flat. Does anyone on here have any experience with the M-Series? Does it stay flat after a few months (or even years) of use? Does anyone have any other suggestions for me? All replies greatly appreciated. Thanks.