Hi All
Rather than add this to my other thread I thought I woukld ask the specific question?
Are you using Dust-Aid?
And now "they" say you can use it on the "other" Canon models including the 40D and the 400D i.e. those with the ITO coating by using the 'Canon Cleaner' sheet which apparently is an even lower tack adhesive strip for the more potentially contact sensitive sensors, are you using that version? Link here http://www.dust-aid.com/cameras.html
Though they do not seem to have updated their FAQs page where its use on slef cleaning sensors is not advised???
As you might see from my other post I have reached the conclusion that unlike my 350D the 40D will need a little higher user maintenance between the blower, brush, Dust-Aid & E2 fluid with pads there is a suite of products to help the process but if Dust-Aid is as good & harmless as they say it seems a very sensible addition to the arsenal. Especially as like the wet method you get a fresh cleaning element each time whereas a brush could/will get dirty?
PS Note they say the upcoming Nikon D300 will need the Canon Cleaner sheet. 

Especially in respect of the 5D as this I think is front coated like the 400D and 40D
