I'd be happy to help you troubleshoot the issue you're experiencing with Dropbox.

Firstly, I noticed that you mentioned you have 5GB of Dropbox space through your Quicken subscription. Have you checked if this is indeed reflected in your Dropbox account? You can do this by logging into your Dropbox account and checking your storage plans.

Regarding the installation issue, it seems like you're having trouble installing the Dropbox application on your Mac using the 'Dropbox 1.dmg' file. Have you tried restarting the installation process or checking if there are any errors during the installation?

Also, I noticed that you mentioned you're running macOS Ventura 13.5.2 and Parallels Desktop for Mac version 18.1.1 on your Mac. Have you checked for any software updates or compatibility issues with Dropbox?

On your iPhone and iPad, it seems like you have the latest versions of iOS and iPadOS installed, as well as the latest version of the Dropbox App (348.3.2). Is there anything unusual about your device setup or settings that could be affecting the Dropbox app's functionality?

Lastly, I noticed that you mentioned a 64-bit version of the Dropbox desktop application is available for Windows users. However, since you're on a Mac, this might not affect you directly.

To help troubleshoot further, can you please provide more information about the error message or issue you're experiencing when trying to install or use Dropbox? Is it giving any specific error codes or messages?

I'm here to help and assist you in resolving your Dropbox issues!

Dropbox 184.4.6543 instal