Why is my in-built lap-top infra red device causing a problem?
Some built-in lap-top infra-red devices will cause problems with Windows Prolog because they generate a continuous output of information that interferes with the data stream from the VR3. You may find that you cannot download dives, that your VR3 freezes up or that you lose your dive log and gas information settings. To avoid these problems you should · use a serial or USB plug-in link, (and naturally we recommend our Delta P serial 9 pin infra red link, item C6 in the catalogue), · disable your in-built infra red driver, (see FAQ#6). Note: if you use an extension cable with your infra-red link, make sure that it is a pin to pin cable, (no crossovers). · The link can be configured as either Com 1,2,3 or 4. · Go to the Prolog menu bar, · click on Tools then Options to find the VR3 communications setting window. · Make sure you have set the correct Com port. Even if you appear to only have one Com port on your PC, do not assume it is Com 1. Try setting Prolog to each Com port in turn. NO
