I am having a problem when inserting the 2nd sheet in a drawing. For some reason I am getting an message that an error occured when trying to open my file. I saved the sheet format file with a uniqe name in the default folder. For some reason the size of the file is only of 2k which is very much different of the other saved files. Any one have an idea of the source of this problem? The first drawing sheet has no problem to load. The problem happens only when inserting the 2nd sheet. Thanks.