Medogsfat: No they aren't Jack but don't despair there is a fix.
You need some electrolytic paint which is available from car accessory shops. It is the stuff used to repair the elements on heated rear windshields. It isn't cheap though.
You can also use aluminium foil dots applied with double sided tape but it isn't quite as good as the above.
Chris.
I have had success with the aluminium foil fix.
Use the same machine as you use to make holes in paper (don't know the English name...), and attach the alu to the plastic with super glue.
Living room: BV7-40 mkIV + V8000, BL5, BL3, BM1 and BS9000. Bedroom: MX3000 and BL4500 on MCL2-AV. Around: PentaIII, CX100 and MCX35 on ML/MCL + MCL2-A, BeoPort and BL4 on ML, BS3300 + M75 as stand alone, BC6000 + BC600 and BT1100, LC1, LC2, Beo4, Beo5 and BL1000, BS2 and A8, EarSet2, Apron, Coffee mugs, Enamel Bagdes, Bath towel, Keyring, Books, Lots of miniature and the Bottle opener. Office: BC2300 + BL2500 and BS3. Summer house: BS Century.
Addicted? Oh no.... ;)