Meade ETX90 Solar Filter

I just received a Class "A" solar filter from Scopetronix. Filter is mfg. by J.M.B. I put the scope outside, to accliminate for 30' and installed the filter. I can see basically nothing when pointing the scope at the sun. There is a brightness for about the top half of the 28mm and 26mm eyepieces, but nothing that will come to focus. Then removed the filter, sighted a land object and focused normally with no problem. Tried the filter and sun again with same results as before. Very disappointed, as the filter is $85. Would appreciate any suggestions. Thanks.

I hate to ask the obvious, but are you sure you're pointing at the sun? It can be very hard to get a little telescope like that one pointed accurately without actually looking into the sun because it just doesn't cast a very long shadow.

Oddly enough, while solar viewing (yes, sometimes using my C90) I often have trouble getting my eyepoint just right. For me, this can lead to the kind of problem you describe--only seeing glare from the disc, and not the disc itself. Sometimes it helps me to remove the eyepiece from the diagonal (leave the solar filter in!) and just find the flash of unfocused sunlight on the diagonal's mirror. This lets me know I'm aimed reasonably well. If I now replace the eyepiece (using low-powered ones as you have been using) I'll generally find the sun within the view somewhere.