The reports are creating blank charts when saved to PDF and emailed, though if I run it manually to http it shows up and I am able to print that out manually to pdf.
I have cutepdf writer installed on Win 7 Pro machine and it prints ok to that if I run it as http then print out manually. the print services are working ok.
I recently updated windows 7 pro (32 bit) to latest patches using convenience roll-up as windows auto-updates was failing. and I recently updated PRTG to 188.8.131.528 using the update procedure from the browser interface. before that it was working to send reports with the charts showing in them 1 month ago which is last time auto-report ran.