Solution : https://service.sap.com/sap/support/notes/1491408 (SAP Service marketplace login required)
Key words :
symptom dropdownlistbox/dropbox, terms picklist reason, temporary internet files, browser instances beforerestarting, browser cache, optimizing solutions, ie8 support, solution warning, javascript code, prerequisites
Related Notes :
1358871 | IE8 support in CRMUIF 60 and WEBCUIF 70 |