I know what you mean.  I am visually impaired and struggle with Quckbooks.  Sure I can change my scaling in windows, but I already have it set to 175.  All other applications are readable and have large font sizes for me except Quickbooks.  Seems like this issue would be an ADA violation, especially considering this problem has gone on year after year.  I have to use the magnifier in windows to see some of my Quickbooks text.  Shameful from a company that charges such an outrages amount of money for their software, especially for small operations such as mine.