At a quick guess, as I mentioned via IM I'd say it's because the additions use two cells opposed to one.

As a trial try removing:-

and

from your additions - this will confirm it, then we can look at changing the coding so you can still use the toggle feature.

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Azh

You can also find me at Azhrialilu.com and It's a Bitch Thing
Please do not use my IM details for support questions - refusal often offends